Hello, Which version of Ceph are you using? Are all of your OSDs currently up+in? If you're HEALTH_OK and all OSDs are up, snaptrim should work through the removed_snaps_queue and clear it over time, but I have seen cases where this seems to get stuck and restarting OSDs can help.
Josh On Wed, Feb 7, 2024 at 12:01 PM localhost Liam <imluy...@gmail.com> wrote: > > Hello, > > I'm encountering an issue with Ceph when using it as the backend storage for > OpenStack Cinder. Specifically, after deleting RBD snapshots through Cinder, > I've noticed a significant increase in the removed_snaps_queue entries within > the corresponding Ceph pool. It seems to affect the pool's performance and > space efficiency. > > I understand that snapshot deletion in Cinder is an asynchronous operation, > and Ceph itself uses a lazy deletion mechanism to handle snapshot removal. > However, even after allowing sufficient time, the entries in > removed_snaps_queue do not decrease as expected. > > I have several questions for the community: > > Are there recommended methods or best practices for managing or reducing > entries in removed_snaps_queue? > Is there any tool or command that can safely clear these residual snapshot > entries without affecting the integrity of active snapshots and data? > Is this issue known, and are there any bug reports or plans for fixes related > to it? > Thank you very much for your assistance! > _______________________________________________ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
